SandBox Studies: Red Book (First Starts 1)
Rockefeller Habit #1
Great quarterly planning keeps the management team healthy and aligned with their employees. Employee input helps create a plan with buy-in from the team. Creating a great plan is one thing, but getting your organization focused, aligned and committed to that plan is another. In Chapter 5 of Mastering the Rockefeller Habits, Verne Harnish teaches us the importance of identifying the top priorities for moving the company forward right now, clearly articulating these priorities to everyone in the company, and ensuring all employees understand their individual roles in accomplishing these priorities.
In Rhythm, we call this cascading your quarterly plan , and we add the additional step of quarterly planning at the departmental level. As part of this plan, every employee should identify Individual Priorities that are directly linked to a Company Rock Priority or a Group Rock Priority. Rhythm strategy execution software gives you a very clear picture of how all of these priorities Company, Department, and Individual are linked and supporting each other.
Every quarter you have a chance to send a message to your company about what is most important. But to really complete the message, you have to take it one step further and determine from that narrowed down the list, what is the Number 1 Top Priority for the company this quarter. What is this quarter all about? In Rhythm, we call this the Main Thing. You will not only be prompted to assign an owner for each priority, but you must also establish clear success criteria for each priority. We call this Red-Yellow-Green success criteria… more on that later. This is a worksheet that Verne Harnish created to help establish team accountability and determine the specific actions that must be taken to complete each priority.
Using Rhythm software, you are able to accomplish this by creating Action Items that are linked to each priority. This is the purpose of the theme. A good theme will include a memorable name, a measurable target, a deadline and some form of celebration or reward. All of these elements are supported in Rhythm in the Annual Focus and Quarterly Focus screens, and the information is displayed throughout Rhythm no matter what section of the software you are in as a constant reminder of what is most important. If the purpose of a theme is to bring a plan to life and reinforce what is most important, then the theme must be derived from the Main Thing or Top Priority you want your people focused on.
Along with building your theme around your top priority, you should measure the success of your quarter and the criteria for achieving the reward or celebration with a Critical Number. In Rhythm, you are not only asked to establish the Critical Number for the quarter, you are asked to establish clear Red-Yellow-Green success criteria for that Critical Number.
And if you choose to, you can add that Critical Number to your KPI Dashboard and track progress weekly throughout the quarter. No one knows better what holds a person back from being highly productive in their job than the person in that job. The people in your company have the answers, you just have to figure out how to get those answers out of them and into action.
There are a lot of ways to go about gathering this kind of information, but the way that we have addressed it in Rhythm is through an exercise called Start, Stop, Keep. We suggest that as a part of your quarterly planning process, you ask employees to identify the top three things they would like to see the company or department Start doing, the top three things they would like to Stop doing, and the top three things they think are working really well that they want to make sure they Keep doing.
As part of the Quarterly and Annual Planning screens, Rhythm provides a place for employees to go in and enter their Starts, Stops and Keeps prior to the planning session so that they can be reviewed, evaluated and acted on each quarter. Critical Numbers are special metrics designed to align the company and drive a priority that will be highlighted for a specific period of time quarter or year for the purpose of making an improvement in that area. It is important that whenever you establish a Critical Number, you consider any potential negative impact that intense focus could have on another part of the business.
In addition to having two Critical Numbers that help you make progress on a particular priority for a short period of time, you should also have a set of metrics that provide data about the ongoing health of the company over time. In Rhythm we call these KPIs. KPI dashboards can be created for the company and for each department and allow you to know at a glance whether or not your plan is on track and your business is in balance.
Defining the success criteria in terms of Red, Yellow, and Green allows you to update the status of each KPI every week with the corresponding color, allowing you to view the KPI dashboard and know immediately where you are on track and where you are off track. The executive team is healthy and driving performance when they know they and their team know all of their numbers and work daily to influence them.
Looking for some KPI Examples to help get you started? Marketing KPI Examples. In Rhythm you will see that every Priority and every KPI should be assigned an owner, have a clear definition of what success looks like, and be visible for all to see. In order not to be blindsided by the final result, it is important for the KPI to be tracked and discussed weekly if possible.
During planning, you should discuss, debate and agree as a team on what success looks like and what failure looks like. You will create your plan for the purpose of achieving your Green goal.
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It is the definition of failure. A well-organized set of daily, weekly, monthly, quarterly and annual meetings keep everyone aligned and accountable. And the agendas for each provide the necessary balance between the short term and long term. Rockefeller Habits teaches us that routine can set you free, and the Rhythm strategy execution software is designed specifically to support a healthy routine of Strategic Thinking, Execution Planning and Doing the Work in the form of Annual, Quarterly, Monthly, Weekly and Daily meetings.
To create a new network namespace, use the following command:. This will take you inside the network namespace, which has only a single network interface with no IP. This will bring the loop interface up. But to connect to the external network you need to create a virtual Ethernet and add it to netns as follows:.
Unshare The unshare utility is used to create any namespace isolated environment and run a program or shell inside it. To get a network namespace and run the shell inside it, use the command shown below:. The shell you get back will come with a different network stack. You can check this by using ip addr , as follows:. To get a whole different degree of process tree isolation you need to mount another proc for the namespace, as follows:.
In this way, you can use unshare to create a single namespace. More about it can be found out on the man page of unshare. Note: A namespace created by using unshare can also be combined to create a single shell which uses different namespaces. For example:. Firejail Firejail is an SUID sandbox program that is used to isolate programs for testing or security purposes.
It is written in C and can be configured to use most of the namespaces. To start a service in firejail, use the following command:. It will start Firefox in a sandbox with the root file system mounted as read only. Firejail, by default, uses the user namespace and mounts empty temporary file systems tmpfs on top of the user home directory in private mode. To start a program in private mode, use the command given below:. Containers When learning about virtualisation technologies, what attracted me most were containers because of their easy deployment.
Containers also known as lightweight virtualisation are tools for isolation, which use namespaces for the purpose.
They are a better sandboxing utility, because they generally use more then one namespace and are more focused on creating a whole virtual system instance rather than isolating a single process. Containers are not a new technology. They have been in UNIX and Linux for decades but due to their increasing use in SaaS and PaaS, they have become a hot topic since they provide the most secure environment to deliver and use these services.
They are called lightweight virtualisation because they provide process level isolation, which means they depend on the Linux kernel. Hence, only those instances can be created which use the same base kernel.
- Cwen li Refor.
- Kinematics of fault‐related folding derived from a sandbox experiment!
There are lots of containers available for Linux that have gained popularity over the past few years. Systemd-nspawn This is a utility available by default with systemd, which creates separate containers for isolation. It uses mount and PID namespaces by default but another namespace can also be configured.
To create a container or isolated shell, you need to download a basic distribution which we have done already, using debootstrap.
In the Sandbox of Words: On Puzzles and Novels
To get inside this container, use the code below:. This container is stronger then chroot because it not only has a different mount point but also a separate process tree check it by ps -aux. But still, the hostname and IP interfaces are the same as the host system. To add your own network stack, you need to connect to the existing network bridge. This will start the container with the network namespace with a pair of veth devices. You can even boot the instance by the -b option, as follows:. Note: While booting the container, you will be required to enter the password of the root user; so first run passwd inside to set the root password.
The whole nspawn project is relatively young; hence there is still a lot that needs to be developed. Docker Docker is the smartest and most prominent container in Linux to run an applications environment. Over the past few years, it has grabbed the most attention.